Is there a way to calibrate without 3-50 pound weights?

To calibrate the scale on Robinair 34288, follow these steps:

1. Turn off the machine and make sure that the scale is empty.
2. Press and hold the "Weight" button for three seconds until "CAL" appears on the display.
3. Place a weight of known mass (such as a 50-pound weight) onto the scale and press the "Weight" button. The display will show the weight that you placed on the scale.
4. Press the "Weight" button again to confirm the weight. The display will show "CAL END" to indicate that the calibration is complete.
5. Remove the weight from the scale and turn the machine back on.

Your Robinair 34288 scale should now be calibrated and ready to use. If you have any issues or concerns, please consult the user manual or contact Robinair customer support.

Question moved from Cars and Trucks to Scales.

Home scales are not capable of being calibrated. They are done in the factory to a fairly strict standard. Only commercial scales are capable of recalibrations and that has to be done by a technician, stamped and certified by certificate.

The closest is a 'Tare' which guarantees zero. Normally, press on, and momentarily press On again.

Unless you have a certified weight, you have nothing to calibrate against. Even a pound of butter or 2 pounds of sugar, is an approximation. You would need an old scale shop keepers weight with the lead filled hole in the bottom, with the numbered, certified stamp impressed into the lead.

You can't convert quarts into pounds without knowing the substance. quarts are measuring volume where as pounds are measuring weight. For example, Milk is lighter than water so a quart of water is going to weight more than a quart of milk.

it needs weights of set mass to be able to calibrate
simple weights are packaged items like sugar frozen vegs etc
anything with the weights printed on the outside and the thinner the packaging material ( paper, plastic) the better as the weight of the packaging material ( glass steel etc) will affect the calibration

The scale probably needs to be calibrated. There should be instructions in the manual.

Female Ideal Weight - Above Average Height The average height of a woman in the US is 5-foot-4. When considering the weight and height ratio, a 5-foot-5 woman should weigh between 113 and 138, 5-foot-6 between 117 and 143 and 5-foot-7 between 122 and 149. The weight and height ratios continue to increase at approximately 4.5 pounds at the low end and 5.5 pounds at the high end of the range, per inch of height. A 6-foot-tall woman's ideal weight range is 144 to 176 pounds and a 7-foot-tall woman's range is 198 to 242 pounds. Male Ideal Weight -- Under 6 Feet Tall Men have an ideal weight range similar to that of women, but their weights are higher per inch. A man who is 5 feet 11 inches tall has an ideal weight range of 155 to 189 pounds, which is significantly higher than the 140- to 171-pound range for women. Men under 6 feet tall can determine their ideal weight without consulting a height-to-weight ratio table by starting at 5-foot-11 and a weight of 155 to 189 pounds. Simply subtract 5 to 6 pounds per inch from the low of 155 pounds, and 6 to 7 pounds per inch from the high of 189 pounds. Thus, a 5-foot-5 man has a range of 122 to 150 pounds and a 5-foot-tall man has an ideal weight range between 95 and 117 pounds. Are There Ideal Weight and Height Ratios LIVESTRONG COM

Calibrating a digital pocket scale like the Mega Weigh MGP-1014 ensures that it provides accurate measurements. Here are the general steps for calibrating such a scale:
Note: It's important to refer to your scale's user manual for specific instructions, as calibration methods can vary between different models.
What You'll Need:

• Calibration weights (these are weights with known, precise values)
• The Mega Weigh MGP-1014 scale
• A clean, stable surface for calibration

Steps:

1. Read the Manual: Familiarize yourself with the user manual that came with the scale. It should provide specific instructions on how to calibrate the scale.
2. Clean the Scale: Ensure that the scale's weighing platform is clean and free from any debris. This helps to prevent interference with the calibration process.
3. Power On: Turn on the scale and wait for it to stabilize, displaying "0.0" or the default reading.
4. Tare (Optional): If your scale has a tare function, you can use it to zero out the weight of any container you plan to use to hold the calibration weights. Place the empty container on the scale and press the tare button.
5. Select Calibration Mode: Many scales have a calibration mode that you need to access. Refer to your user manual to determine how to enter the calibration mode on the Mega Weigh MGP-1014.
6. Add Calibration Weight: Place a calibration weight of a known value onto the scale's platform. The weight should match the unit of measurement you plan to use (grams, ounces, etc.).
7. Calibration Procedure: Follow the specific instructions provided in the user manual to initiate the calibration procedure. This usually involves pressing buttons or following on-screen prompts. The scale will often ask you to confirm the weight value of the calibration weight you added.
8. Confirm or Adjust: The scale should display the weight you added as the calibration weight. Confirm that the displayed weight matches the known value of the calibration weight. If there's a discrepancy, follow the manual's instructions to adjust the calibration setting accordingly.
9. Repeat if Necessary: Some scales require calibration with multiple weights to ensure accuracy across the scale's entire range. If this is the case, follow the manual's instructions for using additional calibration weights.
10. Exit Calibration Mode: Once you've completed the calibration procedure, exit the calibration mode according to the instructions provided in the user manual.
11. Test with Known Items: After calibration, test the scale's accuracy by weighing objects of known weight to ensure that it's providing accurate readings.

Remember that the exact calibration process can vary depending on the scale model, so always refer to the user manual for the most accurate instructions. If you're unsure about any step, it's recommended to contact the manufacturer's customer support for assistance.

Set it for zero and put on a known weight. A 10 pound bag of sugar or a known weight bowling ball both work well. A sealed bag of rock salt or sand will also work. They will give you a better reading, since they are heavier.A bag of potatoes can be off by a couple of pounds.

Form the main menu go to ''CHANGE DEFAULT'' then press 5454 (old typ machine 8787 without F1 botton on key pad) & YES key (passwoed to access default option).Once you enter to default menu,go to "SCALE CALIBRATION" & press YES key.now follow the on screen help text.NOTE:you should have 9KG/20LBS of weight for scale calibration.
Hope this will solve you.

Press and hold 'CAL' key to calibrate the scale. www.luxford.cn